| 多裂纹体边界元的奇异元解法及其在多裂纹重力坝中的应用 |
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| 引用本文： | 陈维枢,岑书龙,程心恕,周瑞忠.多裂纹体边界元的奇异元解法及其在多裂纹重力坝中的应用[J].福州大学学报(自然科学版),1991(2):90-95. |
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| 作者姓名： | 陈维枢 岑书龙 程心恕 周瑞忠 |
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| 作者单位： | 福州大学土建系，福州大学土建系，福州大学土建系，福州大学土建系 福建省水利水电勘测设计院 |
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| 摘 要： | 本文采用边界元的位移不连续法、为了反映物体缺陷的应力集中现象，在缝端设置奇异 元，同时用ＦＯＴＲＡＮ语言编出计算机程序，对多裂体及多裂纹重力坝进行线弹性断裂分析，结 果表明位移不连续边界元法对求解多裂纹问题是很有效的．
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| 关 键 词： | 奇异单元 多裂纹体 应力集中 位移不连续法 边界元法 断裂力学 |
Solution of BEM with Singular Element for Multi-Cracks Body and Its Application to Gravity Dam with Muiti-Cracks |
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| Chen Weishu.Solution of BEM with Singular Element for Multi-Cracks Body and Its Application to Gravity Dam with Muiti-Cracks[J].Journal of Fuzhou University(Natural Science Edition),1991(2):90-95. |
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| Authors: | Chen Weishu |
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| Institution: | (Department of Civil and Architectural Engineering) |
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| Abstract: | In this paper,the displacement discontinuous method or BEM has been used, and the singular boundary elements have been applied to the crack tip of the body to reflect stress concentration of the body with flaw. The computer programs have been worked out in FORTRAN language. Purthermore, with the help of the programs, the bodies with multiple cracks and a gravity dam with multi-cracks have been analyzed by using linear elastostatic fracture Mechanics' Method. The results obtained show that the displacement discontinuous method is quite efficient for solving multi-cracks problems. |
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| Keywords: | singular element multi-cracks stress concentration displacement discontinuous method BEM fracture machanics |
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